Machine for use in repairing boot and shoe soles.



T. WATERS.

MACHINE FOR USE IN REPAIRING BOOT AND SHOE SOLES.

APPLICATION FILED JUNE 4.1917- Patented Dec. 11,1917.

2 SHEETSSHEET T. WATERS. MACHINE FOR USE IN REPAIRING BOOT AND SHOE SOLES.

APPLICATION FILED JUNE 4, 1917.

Patented Dec. 11, 1917.

2 $HEETSSHEET 2 rnoues warms, or NORTHAMPTON, ENGLAND.

MACHINE FOR USE IN REPAIRING BOOT AND'SI IOESOLES.

Specification of LettersPatentQ Patented fle c; 11; 1917;

' Application filed June 4,1917. Serial No. 172,781.

To all whom it may concern.

Be it known that 1, THOMAS WATERS,- a subject of the King of England, residingin Northampton, in the county of Northampton, England, have invented-certain new and useful Improvements in Machines for- Use lnRepairi'ng. Boot and Shoe. Soles, ,of-

which the, followingis a specification.

, This lnvention relates tothe repairing of bootsv andgshoes and has for an object to, provlde animproved' method and means whereby a worn'sole, may be severed and beveledjat -th'ejoint or other placeiin order to allow a freshsole piece to be applied to the boot. In doing repairs of'the nature indicated upon ordinary boots the out, which is generally at the joint, is usually made as nearly as possible in the line of the bevelwith ahand knife. Severing in this way, however, .becomesimpossible whenr'the work to be treated contains any considerable quantityv of metallic fasteners or reiuforcements' such:as are'present in military boots, and in such work the removalof the worn sole and the beveling of the remaining portion to the proper angle tojreceive thenew sole pieceis, with the methods hitherto in use, laborious and occupies considerable time.

Accordingrto the. present invention the sole. is; severed and'the desired bevel surface produced on the remaining part OfallhQ sole simultaneously with such severing (unless the severing has previously been performed by other means) by cutting through the Work perpendicularly, or approximately so,

. toward the required bevel surfac thereby removing a portion-of the sole, ,by relatively traversing-the work and a rotary power driven tool. Convenientlythe work and tool are relatively traversed a number of times, the tool removing at each traverse a certain-amount of material, which am ount will dependgupon the toughness of the work and upon the pressure applied between -tl13: t001 andthe work, until the sole is severed and the desiredbevel isproduced.

Additional features of-the present inventiontreside in certain constructional features of apparatus hereinafter described.

A preferredform of'apparatus for carrying theinvention into effect will now be described by-way of example. In this apparatus the work is presented to andtraversed across the tool. It will be understood, how-. ever, that in an alternative construction the w rk ay be ,fiXed the tOolpresent-d thereto and-traversed across it. .11 the accompanying draw ngs Figure 1 shows inplan. the upperper-Q tion of a machine constructed in accordance with the present invention;

Figs. -3, 4, 5 and 6;;are-detail views {of partsof the machine shown in Figs. 1 and 2 Like, reference characters indicate like parts inallthe; figures. i

The apparatus comprises a rotary cutting tool'l, conveniently mounted on a horizontal shaft 2 adapted to be rotated from'any suitable source of power, .and a work holder of which the main member is an open frame 3luniversally pivoted. at one end to a sup porting; post lon-the table of the, machine (there being horizontal and vertical pivots 5 and 6 respectively);-and provided atthe other end with a handle 7 by which the work isbroughtby the operator by a horizontal movement .into contact with the tool I vided with a slot 10 slightly 'widerthan the tool and of'a length greater than the width of the largest sized boot required to be treated. The outside 11 ofthe'slottedend ,ofthe see- Fig. 2 is a sideelevation of; the same; v andondaryframe is shaped approximately to the I, usual curve of 'the inner side of the sole to be cut through and cooperates, as w-illbe hereinafter e'xplained,,- with a, gage for the depth of cut. The boot is positioned with its sole against the inside of the slotted end of the secondary frame in the following way i V i I SA lastis inserted in the boot .and inthe usual pinhole is placed the short leg 12 of a bar bent at right angles,- the longer leg113 of this bar eXtending'over the forepart of the boot. In the end ofthe secondary frame opposite the .slot is mounted a screw 14 carrying at one end-a hand adjusting wheel 15, and at the other a member. 16 containing a hole-for; the reception of the long: leg

13 of the aforementionedbent barn. The boot.

is placed by the operator with the portion of its sole which requires to be beveledover the slot and is then firmly positioned there by screwing the hand wheel so as to force the longer leg of the bent bar toward the last.

In operation, the main frame 3 carrying the secondary frame 8 with the boot positioned therein is swung around by hand on its pivot 6 which is placed so that the tool will pass into the slot in the secondary frame when the work holder is moved around. The cutting of the sole is done by traversing the frame (while pressing it against the tool) the required number of times pastthe cutter by moving it up and down on its pivot 5.

In order to make an adjustment in the angle of the bevel formed on the remaining portion of the original sole, the secondary frame may be arranged to pivot within the main frame, preferably on pivots 17 lying approximately in the line of that side of the slot nearest to the pivoted end of the main frame, so that the slot maintains a constant lateral position with relation to the tool in spite of the adjustment. Suitable means such as slot 18, screw 19 and fly nut 20 are provided for clamping the frame 8 in adjusted position on the frame 3. The main frame may conveniently carry a lug 21 which may be dropped into a recess 22 formed on the supporting post 4: so that the bootcarrying frame may (when moved out of position by liftingthe frame to bring the lug 21 over the flange 23 in which the recess is formed, until the lug and recess are in line) rest supported away from the tool out of use and while a boot is being inserted or removed.

In order to regulate the total depth of cut to be made there is mounted on the bearing of the tool shaft 2 and close to the side of the tool a guard or gage 2-1 which can be set to contact, when the out has been made to the required depth, that is, when the sole has been severed without cutting into any underlying portion of the work, with the outside of the sec ondary frame adjacent the slot. Since, however, the curvature from side to side of boots varies it is found necessary in a good many cases to cut a little deeper, particularly at each side, than the curvature of the outside of the slotted end of the secondary frame would permit, and consequently, the

guard is preferably held yieldingly in its normal position (by a spring 25 forcing it against the adjustable stop 26) and can be forced backward by the operator as he presses the work holder toward the tool should he find it necessary to cut deeper at any particular place. The amount which this guard may be forced back is preferably limited by an adjustable stop consisting of a wedge block 27 adapted to coact with an lblicllwd surface 28 on the rear of the guard The tool employed is conveniently about 3- to 1 wide (this being the average width of bevel required) and is preferably in the form of a milling cutter of high grade steel that is not afiected by contact with metallic fasteners of the kind general in military boots such as standard screws, slugs or bills. Alternatively a grinding cutter, as of emery, may be employed. There is preferably embodied in the machine a suction fan of usual type to draw away the particles removed by the rotary tool.

As hereinbefore indicated the tool is shaped so as to simultaneously sever the sole and leave the remaining portion thereof correctly beveled by removing a portion from the sole. Thisportion is in cross section longitudinally of the boot a triangle with its base, which is its shortest side, approximately perpendicular to the sole of the boot, one of the two longer sides of the triangle representing the beveled surface of the remaining portion of the sole. boot is positioned with the surface of the sole approximately parallel to the axis of the cutter, the cutting edge will be at an angle to such axis, equal to the normal angle of bevel required, that is the tool will be frusto conical. A guard is also preferably provided to insure that the cut produced by the tool is a clear bevel running out'on to the surface; this mayjconveniently take the form of a disk 29 mounted on the cutter shaft against the smaller end of the tool,

As has been above indicated the above described method of severing and beveling soles is particularly useful with work containing considerable quantities of metallic fasteners but it possesses advantages of speed in cutting and accuracy of beveling for ordinary work.

Cutting in the direction specified e., removing from the work successive portions each of which is nearer to the desired bevel surface than the preceding portion) as against cutting along the desired bevel surface is of advantage in that the tendency Thus if the which obstructions in the work would have to displace the tool from the desired line of cut is avoided.

What I claim as my invention and desire to secure by Letters Patent is 1. In a machine for use in repairing boot 2. In a boot or shoe repair machine, the

combination of a cutter, a boot or shoe support comprising a main frame mounted to have a universal movement, a secondary frame adjustably mounted in the main frame, and provided with an abutment against which the sole of a boot or shoe is adapted to bear, said abutment being slotted to permit the cutter to engage the sole of a boot or shoe, means for holding a boot or shoe in position with its sole eX- tending across the slot in said secondary frame, and means for moving the boot or shoe support to and from the cutter and in a path transverse to the cutting surface, for the purpose described.

3. In a boot or shoe repair machine,the combination of a power actuated cutter, means adapted to receive and support a boot or shoe and including an abutment or surface against which the sole of the boot or shoe will bear, said abutment being slotted to permit the cutter to engage said sole, and means for eflecting relative movement between the cutter and the boot or shoe supporting means, for the purpose described.

4. Ina boot or shoe repair machine, the

combination of a milling cutter, means for supporting a boot or shoe comprising an abutment for the sole thereof having a slot through which the cutter may operate, and

means for moving the boot or shoe support to and from the cutter and eflecting relative transverse movement between said parts, for

the purpose described.

5. In a boot or shoe repair machine, the combination of a milling cutter, means for supporting a boot or shoecomprising an abutment for the sole thereof having a slot throu hwhich the cutter may operate, means for efiecting relative movement between the boot or shoe supporting means and the cutter, whereby a out having a beveled wall will be formed transversely of the sole of the boot or shoe, and means for effecting adjustment of the boot or shoe to vary the angle of said beveled wall.

In testimony whereof I havesigned my name to the specification in the presence of two subscribing witnesses.

' THOMAS WATERS.

lVitnesses: I 1 v D. CRIoK, T. A. SMITH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. O. 

